
Take
the wedi base element and note that it has a plastic insert prefabricated
into the upper surface (near right). There is also a metal load
distribution plate on the underside.

Now you can start to install the exclusive wedi Fundo Drain. You
can see how the parts fit together if you click the drain diagram link. Insert the 'O' ring seal in the groove on the
insert (near right).
Note that the Main Sealing Collar has a solid

rubber section. Offer this face up to the underside of the Fundo
unit so it locates against the plate that is embedded in the unit
(left).